If you shot RAW, Lightroom can help quite a bit, but there are limits.

A good starting point is:

• lower Highlights to recover detail in the bright sky/horizon
• raise Shadows to reveal more detail in the dark gorge
• if lifting shadows makes the darkest areas noisy or washed out, pull Blacks down a little to restore depth
• add a modest amount of Clarity to bring out texture in the landscape and buildings

Be careful not to push the shadow recovery too far. Several photographers would leave this image mostly as-is, because opening the shadows too much can make the scene look flat or muted. Also watch for halos along the skyline if you add too much clarity; using local adjustments can help.

For future shots of scenes with this much contrast, the better solution is usually in capture rather than post-processing: use a graduated ND filter or shoot multiple exposures for HDR/exposure fusion.