#1
Belém Tower
The 16th-century riverside fortress is a symbol of Portugal’s Age of Discovery and a UNESCO World Heritage Site, together with the nearby Jerónimos Monastery.
- Cost
- Paid to go inside (check the current price); the outside and riverside are free
- Time needed
- 1 hour
- Best time
- Morning, at opening
Insider tip: The exterior is the best part. If the queue is long, admire it from the riverside promenade and spend your time at Jerónimos instead.
Skip it if: You hate queues and tight spiral staircases – the inside is small.