Notes

Monika doesn't know. Otherwise:
Latvia, Sigulda
Featuring enchanting river panoramas, remote forest trails, mysterious caves and ancient castles, Sigulda is a wonderfully magical destination. Located on the edge of Gauja National Park, it's known as "the Switzerland of Vidzeme" thanks to its mountains and steep cliffs.
While there are plenty of stand out sights to see, Sigulda's three ancient castles are usually at the top of travelers' must see lists.
Turaida Castle, a dramatic ochre-colored medieval fortress, is probably the most beautiful. Gutman's Cave, the widest and highest cave in the Baltic countries, is situated nearby. The Neo-Gothic Sigulda Castle, also known as Sigulda New Castle, was built in the 19th century by Russian prince Dimitri Kropotkin.
There's also the romantic 13th century Livonian castle ruins, known as the Castle of the Livonian Order.
In July, music lovers flock to the city for the annual Sigulda Opera Music Festival, held on the open-air stage in the castle ruins.
Travelers can rent an e-bike and explore the many things Sigulda has to offer. There's also a cable car ride, which provides fantastic views of Gauja National Park.
For those looking for even more adventure, Aerodium, located just outside Sigulda, has a rather thrilling vertical wind tunnel. Here visitors can experience the sensations of flying without actually leaving the ground.
Sigulda zipline Zērglis, 14, Jāņa Poruka iela Street, Sigulda, LV-2150, Latvia; +371 283 833 33
Aerodium Sigulda, Rīgas - Vidzemes šosejas 47. km, Sigulda, LV-2150, Latvia; +371 28 384 400

Latvia, Riga
There are many layers to Latvia's UNESCO-protected capital.
Riga's remarkable Old Town captivates with its skyscraper-sized church spires and rows of colorful houses.
Taking the elevator to the top of St. Peter's Church for 360-degree views of the city, is an absolute must, along with a visit to the gothic House of the Blackheads and the Riga Cathedral.
One of Riga's most significant landmarks is the Freedom Monument, built in honor of the soldiers killed during the Latvian War of Independence. Standing at a height of 42 meters, it's located by the entrance to the Old Town.
The giant Stalinist Latvian Academy of Sciences skyscraper, a nod to the city's Soviet heritage, is another highlight. But it's the art nouveau architecture that really sets Riga apart.
There are over 800 buildings here, more than any other city in Europe, and the intricate floral patterns, whimsical lines, allegorical motifs and distinct national patterns are a truly impressive sight.
The majority of Riga's art nouveau buildings are located in Centrs district.
For those looking for an authentic Riga nightlife experience, Folkklubs Ala Pagrabs, a pub, restaurant, and underground concert hall rolled into one, is the place to be. The venue, which offers mouthwatering Latvian fares and beers, attracts a diverse mix of revelers, including students and tourists.

Estonia, Tallinn
It would be immoral of us to not have mentioned Tallinn in the numero uno spot, for it deserves it. Among the many famous places to visit in Estonia, Tallinn is the foremost in the running. The main attraction or heart of the city is Toompea and it still has kept the ancient and historic ambience very much alive with Cobblestones Street and 15th Century establishments. The region is well preserved and is accessible by walking for history lovers. From the topmost region of Toompea, you can get a view of the hustling and bustling, Old City.

Estonia, Narva Castle
The easternmost destination on the map of Estonia is the city of Narva. This particular city was heavily bombed during the WWII. However, the beautiful and historic castle of Narva still stands today. The castle is also known as the Hermann Castle, wcentrehich was built in the 13th Century. The castle repletes a good collection of handicraft workshops for people to learn which also includes a museum. The most gorgeous view here is the tower of the Narva castle that overlooks the Russian side of the river.

Low amount or enough? If low amount of places, then read some 4 more places to visit and shoot photos with:

Estonia, Parnu
The coastal resort city of Parnu is located where the Parnu River falls into the Gulf of Riga. The major attraction here is the beach of Parnu (Can we go here plzzzzzzzzzzzzz?), boasting off about the gorgeous dunes and powdery white sand. Parnu is also famous as the summer capital because most of the Estonians choose to spend their summer vacations here. You can also visit the indoor water park in the area named as the Vee Park. Well, it is one of the best places to visit in Estonia in winter.

Estonia, Tartu
Considered as the intellectual hub of the country, Tartu is well known for the University of Tartu. It is the oldest city in the nation which makes it more interesting to visit. The city centre is classically designed with 18th Century buildings, most being an outlet for innovative requirements. The soup neighbourhood is the quirkiest attraction of the city, with street names being named after soup ingredients like beans! It is touted as the best places to visit in Estonia (OMG that is beautiful!).

Latvia, Jurmala
A favored spa destination since the late 18th century, admirers of Jūrmala have included the likes of Communist officials Leonid Brezhnev and Nikita Khrushchev.
Filled with beautiful art nouveau villas, white sand beaches, ancient pine trees and stand out eateries, it's not hard to understand this resort town's enduring appeal.
Nearby Ķemeri National Park could easily be mistaken for the Dead Marshes in J. R. R. Tolkien's "Lord of the Rings" universe due to its fantastical landscape.
One of the most intriguing natural sights in Latvia, the wildlife reserve is made up of swamps, lakes and forests. The Great Ķemeri Bog, a huge dry moss swamp, is a highlight due to its photogenic wooden board walk.
Top restaurant 36. Line, run by chef and restaurateur Lauris Aleksejevs, is among Jūrmala's finest restaurants, offering a modern twist on traditional Latvian dishes.

Latvia, Daugavpils
Although it's the second largest city in Latvia, Daugavpils remains an underdog when it comes to both domestic and international tourism. Has many Russians and has 5G already setup!
Located on the banks of the Daugava River, the city is best known for its imposing fortress.
Constructed at the start of the 19th century, the monument has survived the Napoleon invasion as well as both World War I and II, and remains almost entirely unchanged. The Daugavpils fortress is also the site of the Mark Rothko Art Centre, which lies inside its arsenal building.
This art and culture center features a fantastic exhibition about the world famous abstract expressionist.
Consisting of a mainly Russian-speaking population, the city is filled with impressive architecture, from tarnished art nouveau houses to Soviet residential buildings.
One of its most picturesque places is Church Hill, home to churches of all four of the main Latgale region denominations, Russian Orthodox, Old Believer, Roman Catholic and Lutheran.
Among the best restaurant options is Art Hub, providing inventive Latvian flavors in an elegant setting. The Josper-grilled steaks here are particularly delicious.

Idk, Monika could not go and be with her love :D

Sources: https://traveltriangle.com/blog/places-to-visit-in-estonia/
https://edition.cnn.com/travel/article/latvia-beautiful-places/index.html