Tucked beneath Cologne’s City Hall, this underground site gives you a glimpse of the city’s Roman past. You can walk through the remains of the governor’s palace and parts of the old sewer system—surprisingly intact.

Quent Cordair Fine Art, an art gallery in Downtown Napa, specializes in Romantic Realism, featuring a collection that ranges from striking, life-sized sculptures to intricate paintings. Established by artist Quent Cordair in 1996, the gallery has earned accolades such as “Best Napa Art Gallery” and “Best Wine Country Art Gallery,” underscoring its reputation as a top art destination in Napa.

The Uptown Theatre, a centerpiece of Downtown Napa, is where Northern California comes for an intimate live music and comedy experience. Known for its close-up seating and excellent acoustics, this restored 1937 Art Deco masterpiece has drawn legendary names like Boz Scaggs, Merle Haggard, Cyndi Lauper, and BB King, along with comedians like Lewis Black and Ron White. Be sure to check what’s on while you’re in town.

St Peter's Church in Riga is known for its tall tower, which offers stunning views of the city, including the red roofs of Old Town, the modern part of Riga, Riga Bay, and the Daugava River with its large port. The church itself was originally built in 1209, but only a few walls and pillars remain from that time. The Gothic tower, which was over 130 meters tall, was completed in the late 15th century. However, it collapsed in 1666 and was rebuilt in the Baroque style in 1690–at the time, it was the tallest wooden structure in the world. In 1721, the tower was struck by lightning and burned down. It was later restored, but once again it burned down during World War II. Renovation of the tower began in 1967, and today, it stands at a height of 123.25 meters. Visitors can access the second gallery, which is 72 meters above the ground. In 1997, St Peter's Church was added to UNESCO's World Heritage list.