The best view in town is free! Just take the elevator up to the 72m (240-ft.) high lookout, and Brasilia is laid out at your feet. You’ll get the best perspective of the Eixo Monumental with the ministry buildings lining the boulevard like dominos waiting to be knocked over.
If you get one of those fiery red Brasilia sunsets, it’s worth heading back to the tower to take in the view. You can skip the gem museum without qualms.